Specifications

Uncontrolled terms: Coefficient of frictions - Contact
Mechanics - Fretting - Loading and unloading - Semi-analytical methods - Structural
component - Sub-surface stress field - Torsional fretting
Classification code: 951 Materials Science - 931 Classical Physics; Quantum Theory;
Relativity - 921.6 Numerical Methods - 674.1 Small Marine Craft - 672 Naval
Vessels - 422 Strength of Building Materials; Test Equipment and Methods - 421 Strength of
Building Materials; Mechanical Properties
DOI: 10.1016/j.triboint.2013.06.002
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
6.
Accession number: 20132916508937
Title: Effect of 950C thermal exposure on microstructures and properties of Ni-based
K403 alloys
Authors: Liu, Jun1, 2 ; Yang, He1 ; Sun, Zhichao1 ; Tang, Wenting2/刘君;杨合;孙志超;唐文
亭
Author affiliation:
1 State Key Laboratory of Solidification Processing, Northwestern Polytechnical University,
Xi'an 710072, China
2 Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Yang, H. ([e-mail])
Source title: Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title: Xiyou Jinshu Cailiao Yu Gongcheng
Volume: 42
Issue: 6
Issue date: June 2013
Publication year: 2013
Pages: 1123-1126
Language: English
ISSN: 1002185X
CODEN: XJCGEA
Document type: Journal article (JA)
Publisher: Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014,
China
Abstract: Thermal exposure experiments of Ni-based cast superalloy K403 at 950°C for 5, 50
and 100 h were conducted. The effect of thermal exposure on the microstructures and
room-temperature mechanical properties of the superalloys K403 was studied. The results show
that M6C carbides segregate from intra-grains and grain boundaries, and γ' phases aggregate and
grow up with blunted corners. With increasing of thermal exposure time, on the one hand, γ'
phases of spherical or nearly spherical shapes are formed from blunted corners and parts of the
γ' phase tend to coarsen due to the connection-oriented effect. On the other hand, the offset
yielding stress and the tensile strength decrease, while the plasticity improves obviously,
resulting from the aggregation and coarsening of the γ' strengthening phase. The
room-temperature tensile fracture surface is characterized by the dendritic structure fracture for